glowworm boiler hideaway ff?

I had a burst pipe accidentally put a nail through it, anyway have now mended said pipe it was the hot water pipe as well. Anyway problem is boiler will not operate properly, i have done what instructions say on front of boiler pressed reset button and it lights up then it says turn switch up between zero and maximum which i have done boiler then switches on as the light comes on to tell you. Problem is it then goes off after a short while which it is supposed to do but it wont fire up again ? have i got air in pipes, do i need to bleed radiators to alleviate the problem. I dont think it is a major problem just somet what i havent done. any ideas out there.